Apparatus for supplying waterproofing material to paper.



G. R. WYMAN.

APPARATUS FOR SUPPLYING WATERPROOFING MATERIAL T0 PAPER.

APPLICATION FILED DEC-29. 1914.

1,1 5&1 3%. Patented Aug. 31, 1915.

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HF V ALPQLE, MASEACH 131%.}, @F WALPGLE, lvMBESAGHJ "FC'R STFPJLYING- 'WATELELEROQFING MATERIAL 5ft TEA'EFJH.

Application filed Zueceincer 191%. Serial lilo, EEG-'13,

7i?- aZZ whom it may concern- )6 it known that it G'EGRGE ll, Vv YMA'N, citizen of the United titates, residing" at East i /ulpole in the county of Norfolk and State of li/insszichucetts, have invented. ccrthin new and use l improvements in Zip porutus Sropi v'iu li l uterproofing Mute rial to inp-e I 1 WE h the following; is e specification, reference being; lied to the accompanying drawings, forming part thereof, T his invention has reference to improve ments in apparatus :ter supplying zssphultie and other waterproofing or Water resisting material to paper or other fabric.

The main object of this invention is to supply the waterproofing or Water resisting material at, it high temperature without danger of igniting the same.

Another object of the invention. is to pr vide menus for raising the temperature of the ivuter 'n'ooiing or Wuter resisting nmterial by 22- step by step process whereby said material at one of its heating steps may he raised to :1 temperature less than its iiushin point 3nd, at a subsequent heating step, may he raised. to at temperature equal to or ex fling its iusl'iing point Without danger of ignition, I

Ether objects oi the invention will appear L from the following description.

The invention consists in such novel few of construction and combination of 1s shall hereinafter he more fully del and pointed out in the claim" :1. ri ure 1 of the drawing illustrates a simupgmrutus embodying the prescntinventhe same lacing shown in side elevaurtiully broken. uwu y und parts being U .n in section. l igi 2 shows a modified auction of the supply pipe at the second hcuter.

Similar churucters of reference designate ceri spending parts throughout.

'Fhe \vuterprooiiug or water resisting mu-- wa herein more particularly referred to contains usphultum, oils tar or krone material of some kind.

' in weterprooiing material it is o designates. y 11Gb. *rini adapted in its fluid state to he applied to paper, it lrie. or other material or articles for the purpose ct protecting said paper, fabric, materiel or article from. moisture in some degree.

'lihe'fiuiclity of most Waterproofing com- (piickly the paper: and.

pounds part-icul uspl'iaitum, is i peru'ture of such cor v r here the age point. in order to or in the best re sults in stlfilll" such viiiter nooiing' GMT: pounds to nu and particularly t paper it is or or so dc irzahie the tli Waite proofing ho so fiz'zid proportion ct ouch compo no. will be serhed by the tiller-sci the pap r surplus of such comp (i not this; a is in such :iiiuid cm'idicion that it drain from the paper: in practice it found that to el'itniu the st desirable degree of fluidity of )lhljlliliiilfj up erprocfing compoundsfor ij-lHf-iij application to paper it is usually neccr ury to raise the tei'nperuture of such compounds approximately to their flashing points and sour imes, preferably above such flushing poin Such heating oil the compound approximately to the flushing point, with the apparatus heretofore cinpioyed for that purpose is dangerous owing to the fact that the ves l containing the compound. must be heated to it temperature above that of the compound und, hence if u portion of said vessel becomes exposed adjacent to said heated compound any slight accumulation of volatile matter from the compound may become ignited from such exposed portion of the vessel and the c0ntents of said vessel may thus be set on fire.

In the present in vent-ion provision is made ieorhed rec th I y for raising the temperature of the Water proofing compound or material. to any degree within the limit of temperature at which said compound can be utilized in 3, practical nmnncr and wholly without, refcrence to the lashing point of such compound or material.

The invention us embodied in the apparatus shown in the drawing preferably ineludes the tank or vesial which may be of any convenient size and adopted to contain a large amount of the we erproofing compound or material. Heat. is applied to this vessel 5 by a. primary heater ehownpn the drawing by the furnace 6 and this hezit is so controlled that the material in the vessel 5 is raised'to a temperature preferably not exceeding 400 F5111. that is to a temperature to render the Waterproofing compound sufficiently fluid to readily flow, but not to the flashing point' From the vessel 5 the comattained in the vessel 5. From the pipe 7 or its enlargement 8 the finally heated material flows through the steam jacketed pipe 10 to the pan 11 which is open at its top and has the guide rolls or devices l2, 12 adapted to guide the web a-a through the fluid material in said pan.

It is to be understood that the supply of the waterproofing compound or material maintained in the vessel 5 is sufficient during operations ofthe apparatus to fill the pipe 7,

its enlargement 8 and pipe 10 and that the flow of such compound or material to pan 1 is adapted to be controlled by the valve 10 of pipe 10. As the enlargement 8 of pipe 7 is thus completely filled and air is excludedit is evident that the temperature oi ,he material in said enlargement 8 can be d above the flashing point of said material and as a result the material is delivered. to the pan 11 in a condition of extreme fluidity in which condition it is most readily absorbed by the web aa so that it is practicable to move said Web through said pan much more rapidly than heretofore. The extreme fluidity of the waterproof material supplied to the Web a-a also facilitates the draining of the surplus material from said web as said web is guided from the pan 11.

While I have shown the pipe 10 as supplied with a steam jacket 13 it is to be understood. that the steam to be supplied thereto through pipe 1-1 is merely to assist in maintaining the temperature of the material passing through said pipe, that is to protect said pipe from the lower temperature of the atmosphere. in practice I have not found it practicable to supply steam to the jacket of pipe 10 at a temperature exceeding 850 l ah. while as above indicated, the Waterprooiing material supplied through said pipe 10 should be at a temperature above 400 Fah.

let pipe 15 but this pipe is not necessarily Y essential to the operation of the device.

It is to be understood that the device is not limited to the use of the enlargement 8 of pipe 7 as heat may be applied directly to some portion of pipe 7 and pipe 10 may be and practicall i is a continuation of pipe 7.

In the modification shown in Fig. 2 of the drawings pipe 7 is shown as having the jacket 16 to confine a layer or body of sand around said pipe 7 whereby any leakage from a joint in pipe 7 may be received by such sand. In the practical operation of the apparatus however it is immaterial whether the heat generated at or by heating device 9 is applied directly to the pipe 7 or to some member exterior of such pipe 7 provided it is possible thereby to raise the temperature of the material in pipe 7 to or above 400 Fah.

Having thus described my invention I claim as new and desire to secure by Letters Patent- Apparatus for supplying waterproofingmaterial to articles such as paper comprising means for raising the tempera we of the material to a point below its flashing point, means for receiving such initially heated material and excluding air therefrom, means for raising the temperature of said preheated material to a point above its flashing point, and a receptacle for said heated material ad: )ted also to receive the article to which said material is to be supplied.

GEORGE R. W YMAN. Witnesses H. H. MILLER, M. M. Rmns. 

